Vis enkel innførsel

dc.contributor.authorLarsen, Roger B.
dc.contributor.authorHerrmann, Bent
dc.contributor.authorSistiaga, Manu Berrondo
dc.contributor.authorGrimaldo, Eduardo
dc.contributor.authorTatone, Ivan
dc.contributor.authorBrinkhof, Jesse
dc.date.accessioned2019-01-11T14:24:48Z
dc.date.available2019-01-11T14:24:48Z
dc.date.embargoEndDate2020-02-07
dc.date.issued2018-02-06
dc.description.abstractIn recent years, Norwegian fishermen have reported problems with fish accumulation in front of the mandatory sorting grids (Sort-X, Sort-V, and Flexigrid). These problems are associated with high fish entry rates and low water flow through the grid sections. In this study, we replaced the lifting panel in the original design of a sorting grid section (Sort-V) by another steel grid (“lower grid”) in order to improve water flow and increase sorting area. Two different inclination angles of this new additional “lower grid” were tested. The results demonstrated that both the lower grid and the main grid contributed to the release of cod and haddock. However, the release efficiency of the lower grid was low compared to that of the main grid. A larger proportion of fish contacted at least one of the grids with the lower grid set at 40° compared to at 35°. The new double grid was found to release significantly more haddock between 38 and 50 cm long than the mandatory Flexigrid. For cod, the sorting system was at least as good as the Flexigrid at releasing undersized fish. Thus, the new double grid system represents a potential alternative to the Flexigrid. Although the Sort-V single grid releases significantly more undersized cod and haddock than the new double grid system, it also releases a significantly higher proportion of the targeted commercial sizes.en_US
dc.description.sponsorshipDirectorate of Fisheriesen_US
dc.descriptionAccepted manuscript version, licensed <a href=http://creativecommons.org/licenses/by-nc-nd/4.0/> CC BY-NC-ND 4.0.</a> Published version available at <a href=https://doi.org/10.1016/j.fishres.2018.01.021> https://doi.org/10.1016/j.fishres.2018.01.021</a>.en_US
dc.identifier.citationLarsen, R.B., Herrmann, B., Sistiaga, M.B., Grimaldo, E., Tatone, I. & Brinkhof, J. (2018). Size selection of cod (<i>Gadus morhua</i>) and haddock (Melanogrammus aeglefinus) in the Northeast Atlantic bottom trawl fishery with a newly developed double steel grid system. <i>Fisheries Research</i>, 201, 120-130. https://doi.org/10.1016/j.fishres.2018.01.021en_US
dc.identifier.issn0165-7836
dc.identifier.issn1872-6763
dc.identifier.otherFRIDAID 1618687
dc.identifier.other10.1016/j.fishres.2018.01.021
dc.identifier.urihttps://hdl.handle.net/10037/14430
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalFisheries Research
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/MARINFORSK/243627/Norway/Managing trawl catches by improving the hydrodynamic performance of sorting grid sections and codends//en_US
dc.rights.accessRightsembargoedAccessen_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920en_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920en_US
dc.subjectSorting griden_US
dc.subjectSelectivityen_US
dc.subjectTrawlen_US
dc.subjectCoden_US
dc.subjectHaddocken_US
dc.subjectWater flowen_US
dc.titleSize selection of cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) in the Northeast Atlantic bottom trawl fishery with a newly developed double steel grid systemen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


Tilhørende fil(er)

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel